Arduino to Isadora with scaling values

I am trying to program and Arduino that reacts to distance to trigger interaction in Isadora - basically, the closer the viewer gets, the more the image/audio changes (volume/opacity). I have found Arduino trigger info on the forum previously, but nothing on getting the info from the Serial Monitor on Arduino to scale values. Has anyone seen this in the forums, or seen patches that do this?

I am not on version 2 yet - my school won't let us run beta software. @eight, if you do re-upload it, can you upload it in the current version, not the version 2 beta? I'd really, REALLY appreciate it.